Join us at FabCon Atlanta from March 16 - 20, 2026, for the ultimate Fabric, Power BI, AI and SQL community-led event. Save $200 with code FABCOMM.
Register now!The Power BI Data Visualization World Championships is back! Get ahead of the game and start preparing now! Learn more
Hi All,
I'm using PowerBI Desktop to extract CSV data from a website that requires basic authentication. Everything is working great in the PBI Desktop client. I'm able to refresh the data without any issues.
However, once I publish the data to the PBI service, the authentication information changes itself from "Basic" to "Anonymous" for the data source. Even after updating the credentials back to "Basic" and entering the correct login and password, the dataset changes itself back to "Anonymous" within a minute or so. Obviously, this is problematic because I'm now unable to schedule a data refresh.
Has anyone else experienced this issue? Does anyone know how to resolve and keep the correct basic authentication information? Any assistance from the community would be greatly appreciated.
Same issue here. I suspect the order of occurrence is the API call fails and returns a 40x response, then PowerBI treats the stored credentials as bad and resets the authentication method to anonymous.
It would be nice if PowerBI did try to be "smart" and reset the stored authentication method/credentials, then users can just try to refresh the data again later.
I have the same issue.
Was this authentication issue ever resolved?
I am having the exact same issue right now. Apparently this is still an issue? Did you ever figure out a workaround?
I am having the exact same problem.
I can authenticate in PBI and in Excel via Power Query.
Hopefully there is a resolution to come
Check out the November 2025 Power BI update to learn about new features.
Advance your Data & AI career with 50 days of live learning, contests, hands-on challenges, study groups & certifications and more!